Results 21 to 30 of about 4,974 (145)

Detecting spawning of threatened chum salmon Oncorhynchus keta over a large spatial extent using eDNA sampling: Opportunities and considerations for monitoring recovery

Environmental DNA, 2021
Over the last century, anthropogenic activities have caused substantial declines in the abundance of chum salmon (Oncorhynchus keta) throughout their range in western North America.
Kristen M. Homel, Thomas W. Franklin, Kellie J. Carim, Kevin S. McKelvey, Joseph C. Dysthe, Michael K. Young   +5 more
doaj   +1 more source

Reciprocal subsidies and food web pathways leading to chum salmon fry in a temperate marine-terrestrial ecotone. [PDF]

PLoS ONE, 2010
Stable isotope analysis was used to determine the relative proportions of terrestrial and marine subsidies of carbon to invertebrates along a tidal gradient (low-intertidal, mid-intertidal, high-intertidal, supralittoral) and to determine the relative ...
Tamara N Romanuk, Colin D Levings
doaj   +1 more source

Growth and maturation of Korean chum salmon under changing environmental conditions [PDF]

, 2012
Salmon populations in the North Pacific have been subject to major changes in environment and fishing pressure since the early 1980s, including a climate regime shift in 1988-89, the closure of the high-seas fisheries in 1993, and a subsequent climatic ...
Dieckmann, U., Heino, M., Kang, M., Kang, S., Kim, S., Seong, K.B., Urbach, D.   +6 more
core   +1 more source

Hexachlorocyclohexane and DDT in marine organisms from the Bering and the Okhotsk Seas

Известия ТИНРО, 2014
Organochlorine pesticides (HCHs and DDT) are harmful and toxic substances affected biota. HCHs and DDT are still used as pesticides in the Southern Hemisphere and from there can reach the North Pacific due to atmospheric transfer.
Vasily Yu. Tsygankov, Margarita D. Boyarova, Olga N. Lukyanova, Nadezhda K. Khristoforova   +3 more
doaj   +1 more source

Archaeology demonstrates sustainable ancestral Coast Salish salmon stewardship over thousands of years.

PLoS ONE, 2023
Salmon are an essential component of the ecosystem in Tsleil-Waututh Nation's traditional, ancestral, and contemporary unceded territory, centred on present-day Burrard Inlet, BC, Canada, where Tsleil-Waututh people have been harvesting salmon, along ...
Meaghan Efford, Spencer Taft, Jesse Morin, Micheal George, Michelle George, Hannah Cavers, Jay Hilsden, Lindsey Paskulin, Doris Loewen, Jennifer Zhu, Villy Christensen, Camilla Speller   +11 more
doaj   +1 more source

Parvicapsula pseudobranchicola in the northeast Pacific Ocean is rare in farmed Atlantic salmon Salmo salar despite widespread occurrence and pathology in wild Pacific salmon Oncorhynchus spp.

Parasites & Vectors, 2023
Background Infection with the myxozoan parasite Parvicapsula pseudobranchicola causes disease in wild and farmed salmonids in Norway. In the northeast Pacific Ocean, the parasite has been reported in Pacific salmon Oncorhynchus spp.
Simon R. M. Jones, Jessica C. Low, Aidan Goodall   +2 more
doaj   +1 more source

Biological characteristics for the spawners of chum salmon Oncorhynchus keta caught in the Indigirka River in 2023

Известия ТИНРО
The main biological parameters of chum salmon Oncorhynchus keta are presented for the spawners caught during the research expedition conducted to the lower reaches of Indigirka in August-September 2023.
A. I. Nikiforov, L. N. Karpova
doaj   +1 more source

Determination of temperature-dependent otolith oxygen stable isotope fractionation on chum salmon Oncorhynchus keta based on rearing experiment

Frontiers in Marine Science, 2022
Reconstruction of water temperatures experienced by marine fishes using otolith oxygen stable isotopes (δ18O) as natural thermometers has been proven to be a useful approach for estimating migration routes or movement patterns.
Yuxiao Gou, Tomihiko Higuchi, Yuki Iino, Tsuyoshi Nagasaka, Yuichi Shimizu, Kotaro Shirai, Takashi Kitagawa   +6 more
doaj   +1 more source

Corrigendum to: ‘Shy trout grow faster: do personality traits predict fitness of brown trout in the wild?’ by Bart Adriaenssens and Jörgen I. Johnsson. 22:135–143 [PDF]

, 2016
No abstract ...
Adriaenssens, Bart, Johnsson, Jörgen I.
core   +1 more source

River temperature drives salmon survivorship: is it determined prior to ocean entry? [PDF]

Royal Society Open Science, 2015
Early life is believed to be a critical stage for determining survivorship in all fish. Many studies have suggested that environmental conditions in the ocean determine the fry-to-adult survival rate of Pacific salmon but few investigations have been ...
Kentaro Morita, Nakashima Ayumi, Motohiro Kikuchi   +2 more
doaj   +1 more source